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    <link rel="stylesheet" href="CSS09_table.css">
    <title>Document</title>
</head>
<body>
    <table>
        <caption>表格标题</caption>
        <thead>
            <tr>
                <td>序号</td>
                <td>班级</td>
                <td>学号</td>
                <td>姓名</td>
            </tr>
        </thead>
        <tbody>
            <tr>
                <td>1</td>
                <td>A2052</td>
                <td>20200200900</td>
                <td>张三</td>
            </tr>  
        </tbody>
        <tbody>
            <tr>
                <td>1</td>
                <td>A2052</td>
                <td>20200200900</td>
                <td>张三</td>
            </tr>  
        </tbody>
    </table> 
    
    <div id="box">
        <div>
            <div>
                <div>
                    <p>
                        狸花猫
                    </p>
                </div>
            </div>
        </div>
        <p>
            大橘猫
        </p>
    </div>

    <h1>This is a heading.</h1>
    <p>This is paragraph.</p>
</body>
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